Hi, I'm 19 weeks pregnant with my second child and I'm not even showing nor can I be sure I'm feeling it move should I be worried.

Every pregnancy is different. If you showed early with your first, maybe this time around you are just not showing yet. Or perhaps you just remember yourself being bigger at this stage then you were. Its hard to say. And as far as feeling baby kick, you are have about a week left of your fifth month? So its possible that you are just not feeling movements yet, or you are so busy you don't recognize it. You should definitely start feeling it soon tho(by the end of the 6th month without a doubt) If you are concerned you should talk to your doctor about it. As long as the heart beat is good, and your measurements are good, they probably aren't concerned. But any time you are concerned make sure you talk to your doctor about it.